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it is clear (that) ...
用于引出明确的事实或观点。
It is clear that she is the best candidate.
很明显，她是最佳候选人。
清楚的；明白的
先理解核心含义，再看它在真实句子里的用法。
清楚的；明白的
Easy to understand; free from ambiguity or doubt.
It is clear that she is the best candidate.
很明显，她是最佳候选人。
颜色透明的
Transparent in colour.
明亮的；发光的；不暗或不模糊的。
Bright; luminous; not dark or obscured.
无障碍的。
Free of obstacles.
无云的。
Without clouds.
The instructions are clear and easy to follow.
说明很清晰，容易遵循。
The water in the lake is so clear that you can see the bottom.
湖水清澈见底。
After the meeting, it was clear that everyone agreed.
会议之后，很明显大家都同意。
用于引出明确的事实或观点。
It is clear that she is the best candidate.
很明显，她是最佳候选人。
表示对某事理解或明确。
Are you clear about the instructions?
你对这些指示清楚吗？
表示没有障碍物或不需要的东西。
The road is clear of snow.
路上没有积雪。
Not this
The water is very clean.
Use this
The water is very clear.
中文中“清”可指“干净”或“清澈”。描述水体透明时应用clear，clean表示无污垢，词义混淆。
Not this
He spoke clear.
Use this
He spoke clearly.
英语中修饰动词需用副词，clear是形容词，应改为副词clearly，避免词性误用。